Spark-arrester.



H. R. DE BERRY & R. H. NEFF.

SPARK'ARRESTER.

APPLICATION FILED MAYB. I9I5A Patented Nov. 2, 1915.

COLUMBIA PLANQCIRAPH co., WASHINGTON. D. c4

warren srarns ramen@ ernten HENRY n. .1bn-BERRYANDRYMOND'H. Nnnrgor'unifrrsnnnen, nENNsYzmnaNne.I

SPAEK-ARRESTER;

70' allwhom z'tmag/ concern.' Beit known that We, HENRYR; DE BERRY and RAYMOND H.Nnrr, both citizens of fthe United States, residing at Pittsburgh, inthe county off Allegheny and State of Pennsylvania, have invented certainnevv vand useful Improvements inI Spark-'Arrester-s, offwhich the' following is a specification.

Thev present inventiony `relates to certain new and useful improvements' in' spark 'and cinder'arresters, an'dhas for-"its object, to provide a 'device off this character-Which 'embodies novel features of constiuction Where'l byxitl can readily be applied asan attachment tothe smoke stack ofa loconi'otive, and vvvlilloperate lin an yeffective manner: tjopreventx the l escapeofliv'esparks andy cinders.

Further objects of the/invention lare-I to prov/idea spark and oinder arrester 'Whichis comparatively' 'simple' and;y inexpensive in its' construction, which will' not' interfere I 'with the draft of`z the bciiler,fivhicfh can? be" easily kept@ in perfect repair," andi which can 'be fitteduponsan ordinary `loco'motive Without necessitating' any changingfor remodeling thereof- Y i,

With these andi otherobje'cts in-view,`the inventiony consistsA in certain novelV combina'- tions and' arrangementsof the parts'as 'Will more fullyappear'as the. descriptionV- proceed-s, thegnovel features thereof being point? ed' outfin ythe appende'd claims. I y

For az'fullt understanding of* the invention, reference is ft'oz be* had' to i the following de-v soripti'onl and accompanying?" drawing, in Which/:+24 i y Y Figure-1'lris'l a vertical sectional view` throughi-rthef'smoke stack-i of? a locomotive provided. 'with' asparkfa'nd cinder arrester constructed in, 4faceordance f .with the inven# ti'orn 1 Fig- 21is side elevation. ofi theupp'er portion of the smokestackgf with the spark Speccatonlof Letters Patent.

the conventional construction 'of locomotives Without' necessitating `anyremodeling or reconstrction'thereof" A Y Referringto theV drawings', the numeralv 1 designates lthe boilerof a locomotive, the numera-1Bv the steam'- eXhaust. Surrounding the upperfend ofthe y'smkjike stackQ andfspaced l.

therefrom soas Atoprovidean annulary cind'er receiving chamber'l, is ya shell 5,l the upper edge of the shell` projecting slightly above the'topof the smoke stack '2,' andv `:being cur-ved inwardly as-` indicat'edbatv 5a'. lower edge of the' shellff terminates inV4 an PatentedNovfZg-ll. Applic'at'i filed-May 8,1915 srialivazegre." Y v f The . meral @the smokestack thereof, andthe Vnuinwardlyextendingflange 6vvhich extends u inwardly into engagement `With the exterior ofthev stackfso as' to provide abotto'rnffor the cind'er,y receiving chamber 4, said: bottom being inclined rearwardly and' dovvnvvardly so asf to dischargefinto'a cindercondu'it `7 which may 'carry the ci'nd'ersjtoythe- 'ash pitl Y or deposit themat zone` side ofthe track: By

reference to Fig.;2,` itwill befobservedtjhat the "eXterio'r shell 5V isdn-effect, cut, off" on ajplane inclined at an'angle tothe axis there? of, 'thebottomf flange 6` being' located the same Aplane fand "being correspondingly inclined'so that'the ashes and cinders collecting inf-the"(chamber11;arev discharged'into the "cinde'r "conduitf 7.

For-'the purpose v of clampinglthe shell-'f5 ln-"position uponthe exterior ofthe stack 2, y

an upper Vclamping'band'v andl a ldvver clamping' band'Q vare provided, `said bands" having the ends thereof extended voutwardly the respec'tivej'clapinpingl bolts- 81i andlb The lat' 8 and 9arespectivelyandj connected by.

split portionsoff'the clamping bands 81 and 9'v arealocated Vat the fronty of the stack 12' Aand under.l thefinolfinedl bottom ,6 of" the shell' vso thatl access can be readily had 1 Whielif pass radially "thronghf'the ycinder re ceiving-"chamberf tay `Then 'these "clamping 'bands` arefloosenedftliefshell can. be bodily removed from' tlie`-Psifnoke`v` stack, although vwhen'tl'ie cla-nipinfgf'ba-nds are" placedV in por sitifonf and Athe clampingscre s l tightened iproper po-f i armeni-f, the extremities bfftlie'arns 'Being secured to a lhcrizentally disposed ring 12 which is arranged over and slightly spaced from the top of the stack. Suitable fastenf ing members such as the rivets 13 may be provided for securing the arms 11 to the within the stack 2, the lower end of the tubular screen being secured tothe steam exhaust 3, while the upper end thereof is flared outwardly over the ring 12 and arms 11. The tubular screen member 14 may be constructed in any suitable manner so that the ordinary gases of combustion will pass freely'through the same while cinders and solid particles will be deflected to one side. As shown upon the drawing the tubular screen member includes an outer'fine screen 14a, and an inner coarse screen 14b which is formed of heavy wire and serves to strengthenV and reinforce the line screen 14a so that tl e latter will retain its shape.

The lower and reduced end of the tapered screen member 14 is applied to the upper end of the steam exhaust 8 of the locomotive. The lower edge of thescreen member is returned upwardly and inwardly, as indicated at 14C, around a ring 15 which. is of a sufiicient size to drop freely over the flanged upper end of the steam exhaust 2. A split clamping band 16 is applied to the screen member 14 immediately abovethe ring 15,

Y as indicatedbyxlTig. 4, andby tightening the clamping bolt 16a the ring 16 can be contracted so as to draw the screen around the steam exhaust 3 immediately, below the flanged end thereof, thereby securely connecting the screen member to the steam exhaust. .v

The flared upper end of the screen member 14 has the extreme edge thereof returned at 14d around a ring 17 which is of a sufiicient size to rest upon and engage the inwardly extending beveled `upper end 5a of the shell 5. A retaining ring 18 stamped from sheet metal or similar material is applied. to the flared upper end of the screen member 14 and arranged to engage the same within the immediate confines of the ring 17. Clamping bolts 19 connect the retaining plate 18 to the beveled upper edge 5fL of the shall 5, said bolts also passing through the returned edge 14d ofthe screen member.

When the clamping bolts 19 are tightened the flared upper end of the tubular screen member will be securely clamped to the upper edge of the shell 5 so as to produce a tight joint between the members and hold the screen securely inposition. rlhe screen itself can be readily removed and replaced cinders and solid particles to the top of the stack where they radiate outwardly and drop into the cinder collecting chamber 4. As previously explained, from this cinder collecting chamber 4 they are discharged into the cinder conduit 7.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent, is

1. Av spark and cinder arrester for locomotives, including an exterior shell adapted to be applied to the top of the smoke stack so as to provide an annular cinder receiving chamber surrounding the same, arms projecting inwardly from the upper edge of the shell, a ring arranged over the top of thel stack and supported by .the arms, a tubular screen member extending longitudinally through the stack and having the upper end thereof flared so as to extend outwardly over the ring, means for attaching thelower end of the tu'bularrscreen member to the steam exhaust,.and means for at taching the upper'end of the tubular screen member te the upper edge of the shell.

2. A spark and cinder arrester for locomotives, including an exterior shell applied to the top of the smoke stack so as to provide an annular cinder receiving chamber surrounding the stack, the upper edge of the shell terminating in an inwardly extending flange, arms projecting inwardly from the upper edge of the shell. a ring arranged over the top of the stack and supported by the arms, a tubular screen extending longitudinally through the stack and having the upper end vthereof flared so as to extend outwardly over the ring, clamping 'means for attaching the lower end of the tubular screen member to the steam exhaust, and a retaining ring clamping the flared upper end of the tubular screen against the inwardly extended flange at the upper edge ofthe shell.

Y 3. A spark and cinder arrester including an annular shell applied to the exterior of the smoke stack so as to provide a cinder receiving chamber surrounding the upper end of the stack, the upper edge of the shell terminating in an inwardly extending fiange, arms extending inwardly from the upper edgeI of the shell, a horizontally disn ing band attaching the lower end of the screen to the steam exhaust, and a retaining ring for clamping the upper edge of the tubular screen against the inwardly extend ing flange at the toppof the before men-- tioned annular shell.

4. A spark and cinder arrester for locomotives, including an exterior shell applied to the top of the smoke stack so as to provide an annular cinder receiving chamber at the upper end of the stack, arms projecting inwardly from the upper edge ofthe shell,

va horizontally disposed ring arranged over the top of the stack and supported by the arms, a tubular screen extending longitudinally through the stack and having the upper end thereof flared so as to extend outwardly over vthe before mentioned arms, means for attaching the lower end of the tubular screen to the steam exhaust, and means for connecting the flared upper end of the tubular screen to the upper edge of the exterior shell. Y

5. A spark and cinder arrester for locomotives, including an exterior shell applied to the top of the smoke stack so as to provide an annular cinder receiving chamber surrounding the upper end thereof, the upper edge of the shell terminating in an in-A l wardly extending flange, arms projecting inwardly from the upper edge of the shell, a horizontally disposed ring arranged over the top of the stack and supported by the said arms, a tubular screen member extending longitudinally through the stack and formed with a fine screen and a heavy rein- "forcing screen, the portion of the screen member within the stack being uniformly tapered toward the lower end thereof, while the upper end ofthe screen member is flared so as to extend outwardly over the before mentioned arms., a clamping band for attaching the tapered lower zend of the screen member to the steam exhaust, and a clamping band for attaching'the flarred upper vend ofthe screen member to the flange at the upper end of the shell.

6. A spark and cinder arrester motives, including an exterior shell applied to the top of the smoke stack so vas'to provide an annular cinder receiving chamber for locosurrounding the same, the lower end of the v shell being cut off at anV angle while `the upper end of the shell extends slightly abo-ve the top of the stack and terminates in 'an linwardly extending flange, a clamping band applied to the stack and extending through the inclined bottom of the shell'so as to be arranged partially within the shell and partially under the bottom thereof, arms projecting from the clamping band and engaging the shell to support the same, a second set of arms projecting inwardly from the upper edge of the shell, a horizontally disposed ring arranged over the top of the stacky andsupported by the second set of arms, a tubular screen member extending longitudinally through the stack and having the upper end thereof iiared, means for attaching the lower end of -the tubular -screen member to the steam exhaust, and a retaining ring for clamping the flared upy per. end of the tubular screen member against the flange at the upper edgel of the shell. y

In testimony whereof I afx in presence of two. witnesses.

HENRY R. DE BERRY. RAYMOND H.

my signature Witnesses n BEN` PAUL BRASLEY, FRED WILxINs.

Copies of this patent may be'obtained for'vevcents each, by addressing the r Commissioner o Patents.

Washington, D. C. v i 

